Portion of a shoe upper



FIG. 1 is a perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken line showing of the circular region and the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. The broken line showing immediately adjacent to the front and rear of the shaded region forms an unclaimed boundary of the design. 

The ornamental design for a portion of a shoe upper, as shown and described. 